Which after building will give you a complete install zip file which extracts into "rockboxdev.alt". Although this build will never be the primary build (the bootloader is hardwired for .rockbox) it does mean you can run a development build without having to break your existing working setup.

I uploaded multiple patches more as an aid to reviewers so I could "show the working" and the comments for each change.

If people prefer reviewing monolithic patches I can just stick with a whole diff for each tracker entry or submit both a series and an "all" patch.
I don't mind applying the patch to a local SVN to generate the diff but git-diff patches should easily apply with "patch -p1 < git-diff.patch".
As you can probably tell I do all my work in a git-svn repo so I can do things in nice bi-sectable discreet steps.

Would it be worth at the same time fixing up the few locations in the source outside of the bootloader where ".rockbox" is still hardcoded?
e.g.:
firmware/include/dircache.h:31
firmware/common/unicode.c:21
firmware/export/font.h:53